GRP Pultruded Grating
High-Strength Structural GRP Grating Systems
What Is Pultruded GRP Grating?
Pultruded GRP grating is produced by assembling pultruded load-bearing bars and cross rods into a rigid panel format. This manufacturing method delivers significantly higher strength-to-weight ratios compared to traditional moulded grating, making it ideal for heavy-duty and structural applications where performance is critical.
Because each panel is built from individual profiles, pultruded GRP grating offers greater design flexibility and can be tailored to specific load, span and fixing requirements, making it suitable for a wide range of industrial environments.
Characteristics of Pultruded GRP Grating
Pultruded GRP grating is designed for structural applications where load capacity, span performance and durability are critical. Manufactured from individual pultruded profiles, the grating provides high strength and rigidity while remaining lightweight and corrosion resistant.
Characteristics include:
- High structural strength suitable for load-bearing walkways, platforms and access structures
- High strength-to-weight ratio, reducing handling and installation requirements
- Controlled deflection performance for longer span applications
- Resistance to corrosion, moisture and a wide range of chemicals
- Fire-retardant resin systems available
- Minimal maintenance requirements over the service life of the installation
Pultruded GRP grating is suitable for use in industrial, commercial and infrastructure environments where consistent structural performance is required.
Resin Systems Available
Pultruded GRP grating panels can be manufactured using a range of fire-retardant resin systems to suit different environmental and performance requirements. Resin selection is typically based on factors such as chemical exposure, fire performance and operating conditions.
ISO Polyester Resin (Fire Retardant)
ISO polyester resin is suitable for general industrial environments where good corrosion resistance and structural performance are required.
- Fire-retardant formulation
- Suitable for general industrial use
- Standard colour: Light grey
Vinyl Ester Resin (Fire Retardant)
Vinyl ester resin provides enhanced resistance to chemicals and aggressive environments, making it suitable for more demanding applications.
- Fire-retardant formulation
- Increased chemical resistance
- Suitable for aggressive or corrosive environments
- Standard colour: Yellow
Phenolic Resin
Phenolic resin is selected where fire performance is a critical requirement, particularly in enclosed or transport-related environments.
- Excellent fire, smoke and toxicity performance
- Suitable for high fire-risk applications
- Standard colour: Brown
Grating Depths & Panel Sizes
Pultruded GRP grating panels are available in a range of standard depths to suit different load and span requirements. Panel configurations can be adjusted to meet project-specific structural and installation needs.
Standard Grating Depths
Pultruded GRP grating is available in the following standard depths:
- 25mm
- 38mm
- 50mm
Depth selection is typically determined by required load capacity, span and deflection limits.
Panel Sizes
Pultruded GRP grating panels can be manufactured in custom sizes to suit individual installations. Panels can be configured to accommodate:
- Structural and load requirements
- Installation constraints
- Transportation and handling limitations
Custom panel manufacture helps reduce on-site cutting and supports efficient installation.
Surface Finishes
Pultruded GRP grating panels can be supplied with different surface finishes to suit safety, environmental and operational requirements.
Smooth Surface
A smooth surface finish is suitable for applications where slip resistance is not a primary requirement or where additional surface treatments are applied.
- Clean, uniform finish
- Suitable for controlled environments
- Easy to clean and maintain
Gritted Surface
A gritted surface finish provides enhanced slip resistance and is suitable for areas where moisture, contaminants or variable conditions may be present.
- Anti-slip finish
- Suitable for walkways, platforms and access areas
- Improved safety under wet or oily conditions
Surface finish selection is typically based on the operating environment and applicable safety requirements.
Standards & Compliance
Pultruded GRP grating systems are designed and manufactured to meet relevant industry standards for structural performance, safety and access applications.
Pultruded GRP grating supplied by PJNC is suitable for use in applications requiring compliance with the following standards:
- BS 4592 Part 4 – Industrial flooring, stair treads and handrails manufactured from GRP materials
- BS EN ISO 14122 – Safety of machinery and permanent means of access to machinery
Compliance with these standards ensures pultruded GRP grating is suitable for use in industrial walkways, platforms, access systems and safety-critical environments.
Typical Applications
Pultruded GRP grating is used in applications where structural performance, durability and resistance to corrosion are required. The high strength-to-weight ratio and controlled deflection characteristics make it suitable for a wide range of industrial and infrastructure environments.
Typical applications include:
- Industrial walkways and access routes
- Platforms and mezzanine structures
- Offshore and marine installations
- Water and wastewater treatment facilities
- Chemical processing and industrial plants
- Rail and transport infrastructure
- Oil and gas facilities
- Utilities and energy installations
Pultruded GRP grating is suitable for both new installations and refurbishment projects where long-term performance and low maintenance are required.
Why Choose PJNC for Pultruded GRP Grating?
✔ 30+ years’ experience supplying GRP grating & flooring systems
✔ Custom design, supply, and installation services
✔ Wide range of grating sizes & configurations available
✔ Proven performance across UK, Europe & Middle East
Contact Us for Pultruded GRP Grating
Need pultruded GRP grating specified for your application?
Speak to PJNC Ltd for advice on load-bearing performance, span requirements and a project-specific quotation.
Frequently Asked Questions
Pultruded GRP grating is a structural grating system manufactured by assembling individual pultruded load-bearing profiles and cross rods into a rigid panel format. This construction method provides high strength, controlled deflection and excellent load-bearing performance, making it suitable for structural and heavy-duty applications.
Pultruded GRP grating is designed for applications requiring higher load capacity, longer spans and controlled deflection. Moulded GRP grating provides bi-directional strength and is typically used where corrosion resistance and layout flexibility are the primary requirements. The choice depends on load, span and application conditions.
Pultruded GRP grating is suitable for structural applications including walkways, platforms, mezzanine floors, access routes and industrial infrastructure. It is commonly used in environments such as water treatment facilities, chemical plants, offshore installations, rail infrastructure and energy facilities.
Pultruded GRP grating can be manufactured using fire-retardant ISO polyester, vinyl ester or phenolic resin systems. Resin selection is based on factors such as chemical exposure, fire performance requirements and operating conditions.
Pultruded GRP grating panels are available in a range of standard depths to suit different load and span requirements. Panels can be manufactured in custom sizes to meet specific project, installation or transportation requirements.
Pultruded GRP grating panels can be supplied with smooth or gritted surface finishes. Gritted finishes provide enhanced slip resistance and are suitable for walkways, platforms and access areas where safety is a priority.
Yes. Pultruded GRP grating offers excellent resistance to corrosion, moisture and a wide range of chemicals. This makes it suitable for use in aggressive industrial environments and areas exposed to harsh conditions.
Pultruded GRP grating supplied by PJNC is suitable for use in applications requiring compliance with recognised industry standards, including BS 4592 Part 4 and BS EN ISO 14122, supporting use in industrial access and safety-critical environments.
Yes. Pultruded GRP grating panels can be manufactured to order, allowing panel sizes, depths, resin systems and surface finishes to be selected to suit specific load, span and application requirements.